const mongoose = require("mongoose")

mongoose
  .connect("mongodb://localhost:27017/welfare", {
    useNewUrlParser: true,
    useUnifiedTopology: true,
    // useFindAndModify: false,
  })
  .then(() => {
    console.log("数据库连接成功")
  })
  .catch(() => {
    console.log("数据库连接失败")
  })
